Dog One- That's a very provincial view of the world mate! Now how the hell is anyone who flies in your unique solution from outside of Straya going to do it safely with a cracked up solution like that one.
Read Dick Smith's example about the Ansett engineers panel on their 767s, then imagine the perplexed look on the faces of Boeing engineers when they were actually asked to put the bloody things in!
It's time for us to have a system that is similar to other countries in order to make the airspace understandable for users both in Australia and for those who come in for trade and commerce.
Smith has also outlined very effectively the arguments to make our system similar to other widespread examples of Europe and USA to make the avionics and ATC software and training standards similar as well.
I just back from Heathrow and Ireland and there are still enough differences between Europe and USA that need to be researched thouroughly the night before. Don't go and make a country like Australia complicated. No foreign pilot will bother to learn it, they'll just meander through it. Not a good solution at all.